solve the system of equations.
-1x+3y=-4
-2x+2y=-4
rearranging the equations,
x = 3y + 4 -------------- (1)
2x = 2y + 4 ------------ (2)
from (1), x = 3y + 4, Now substitute for this into (2).
2(3y+4) = 2y + 4
6y + 8 = 2y + 4
4y = - 4
y = -1
x = 3y + 4 = -3 + 4 = 1
x = 1
Answer: x = 1, y = -1